1
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Holzhauer L, Liagre C, Fuhr O, Jung N, Bräse S. Scope of tetrazolo[1,5- a]quinoxalines in CuAAC reactions for the synthesis of triazoloquinoxalines, imidazoloquinoxalines, and rhenium complexes thereof. Beilstein J Org Chem 2022; 18:1088-1099. [PMID: 36105720 PMCID: PMC9443424 DOI: 10.3762/bjoc.18.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 07/20/2022] [Indexed: 11/23/2022] Open
Abstract
The conversion of tetrazolo[1,5-a]quinoxalines to 1,2,3-triazoloquinoxalines and triazoloimidazoquinoxalines under typical conditions of a CuAAC reaction has been investigated. Derivatives of the novel compound class of triazoloimidazoquinoxalines (TIQ) and rhenium(I) triazoloquinoxaline complexes as well as a new TIQ rhenium complex were synthesized. As a result, a small 1,2,3-triazoloquinoxaline library was obtained and the method could be expanded towards 4-substituted tetrazoloquinoxalines. The compatibility of various aliphatic and aromatic alkynes towards the reaction was investigated and the denitrogenative annulation towards imidazoloquinoxalines could be observed as a competing reaction depending on the alkyne concentration and the substitutions at the quinoxaline.
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Affiliation(s)
- Laura Holzhauer
- Institute of Biological and Chemical Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Chloé Liagre
- Institute of Biological and Chemical Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Olaf Fuhr
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Nicole Jung
- Institute of Biological and Chemical Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Stefan Bräse
- Institute of Biological and Chemical Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
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2
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Karunakar GV, Raju CE, Sreenivasulu G, Bharath Kumar P, Kadiyala V, Sridhar B. Cationic gold-catalyzed intramolecular cyclization of substituted 1,5-diynes to access indenone derivatives. Chem Asian J 2022; 17:e202101408. [PMID: 35243791 DOI: 10.1002/asia.202101408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/02/2022] [Indexed: 11/05/2022]
Abstract
An efficient intramolecular cyclization reaction was developed to achive indenone derivatives. The substituted 1,5-diyenes were converted to the cooresponding indenones via gold-catalyzed organic transformation and moderate to excellent yields of the title molecules were obatined via formation of two C=O and one C-C bonds under mild reaction condtions in one-pot.
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Affiliation(s)
- Galla V Karunakar
- CSIR-IICT, Crop Protection Chemicals Division, Uppal Road, Tarnaka, 500007, Hyderabad, INDIA
| | - Chittala Emmaniel Raju
- Indian Institute of Chemical Technology CSIR: Indian Institute of Chemical Technology, Chemistry, INDIA
| | - Gottam Sreenivasulu
- Indian Institute of Chemical Technology CSIR: Indian Institute of Chemical Technology, Chemistry, INDIA
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3
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Escofet I, Zuccarello G, Echavarren AM. Gold-catalyzed enantioselective cyclizations and cycloadditions. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2022. [DOI: 10.1016/bs.adomc.2022.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Bovonsombat P, Sophanpanichkul P, Losuwanakul S. Electrophilic halogenations of propargyl alcohols: paths to α-haloenones, β-haloenones and mixed β,β-dihaloenones. RSC Adv 2022; 12:22678-22694. [PMID: 36105984 PMCID: PMC9373005 DOI: 10.1039/d2ra03540e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/02/2022] [Indexed: 11/21/2022] Open
Abstract
The Meyer–Schuster rearrangement of propargyl alcohols or alkynols leading to α,β-unsaturated carbonyl compounds is well known. Yet, electrophilic halogenations of the same alkynols and their alkoxy, ester and halo derivatives are inconspicuous. This review on the halogenation reactions of propargyl alcohols and derivatives intends to give a perspective from its humble direct halogenation beginning to the present involving metal catalysis. The halogenation products of propargyl alcohols include α-fluoroenones, α-chloroenones, α-bromoenones and α-iodoenones, as well as β-haloenones and symmetrical and mixed β,β-dihaloenones. They are, in essence, tri and tetrasubstituted alkenes carrying halo-functionalization at the α- or β-carbon. This is a potential stepping stone for further construction towards challenging substituted alkenones via Pd-catalysed coupling reactions. This review highlights the development of α-haloenone, β-haloenone and mixed β,β-dihaloenone formations from propargyl alcohols via direct electrophilic halogenations and metal catalysed-halonium interception rearrangements.![]()
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Affiliation(s)
- Pakorn Bovonsombat
- Mahidol University International College, Mahidol University, Salaya, Nakorn Pathom, Thailand
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5
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Zuccarello G, Escofet I, Caniparoli U, Echavarren AM. New-Generation Ligand Design for the Gold-Catalyzed Asymmetric Activation of Alkynes. Chempluschem 2021; 86:1283-1296. [PMID: 34472729 PMCID: PMC8457203 DOI: 10.1002/cplu.202100232] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/09/2021] [Indexed: 01/01/2023]
Abstract
Gold(I) catalysts are ideal for the activation of alkynes under very mild conditions. However, unlike allenes or alkenes, the triple bond of alkynes cannot be prochiral. In addition, the linear coordination displayed by gold(I) complexes places the chiral ligand far away from the substrate resulting in an inefficient transfer of chiral information. This poses a significant challenge for the achievement of high enantiocontrol in gold(I)-catalyzed reactions of alkynes. Although considerable progress on enantioselective gold(I)-catalyzed transformations has recently been achieved, the asymmetric activation of non-prochiral alkyne-containing small molecules still represents a great challenge. Herein we summarize recent advances in intra- and intermolecular enantioselective gold(I)-catalyzed reactions involving alkynes, discussing new chiral ligand designs that lie at the basis of these developments. We also focus on the mode of action of these catalysts, their possible limitations towards a next-generation of more efficient ligand designs. Finally, square planar chiral gold(III) complexes, which offer an alternative to chiral gold(I) complexes, are also discussed.
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Affiliation(s)
- Giuseppe Zuccarello
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Imma Escofet
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Ulysse Caniparoli
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
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6
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Morita N, Tamura O. Strategic Use of Difference of Valence of Gold Catalysts: Development of Cyclization Reactions Oriented toward Synthetic Diversity Using Propargylic Alcohols. J SYN ORG CHEM JPN 2021. [DOI: 10.5059/yukigoseikyokaishi.79.652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Justaud F, Hachem A, Grée R. Recent Developments in the Meyer‐Schuster Rearrangement. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001494] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Frédéric Justaud
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
| | - Ali Hachem
- Lebanese University Faculty of Sciences (I) Laboratory for Medidinal Chemistry and Natural Products and PRASE-EDST Hadath Lebanon
| | - René Grée
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
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8
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Rocchigiani L, Bochmann M. Recent Advances in Gold(III) Chemistry: Structure, Bonding, Reactivity, and Role in Homogeneous Catalysis. Chem Rev 2020; 121:8364-8451. [DOI: 10.1021/acs.chemrev.0c00552] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Luca Rocchigiani
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
| | - Manfred Bochmann
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
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9
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Reiersølmoen AC, Csókás D, Øien-Ødegaard S, Vanderkooy A, Gupta AK, Carlsson ACC, Orthaber A, Fiksdahl A, Pápai I, Erdélyi M. Catalytic Activity of trans-Bis(pyridine)gold Complexes. J Am Chem Soc 2020; 142:6439-6446. [PMID: 32168451 PMCID: PMC7343288 DOI: 10.1021/jacs.0c01941] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
Gold
catalysis has become one of the fastest growing fields in
chemistry, providing new organic transformations and offering excellent
chemoselectivities under mild reaction conditions. Methodological
developments have been driven by wide applicability in the synthesis
of complex structures, whereas the mechanistic understanding of Au(III)-mediated
processes remains scanty and have become the Achilles’ heel
of methodology development. Herein, the systematic investigation of
the reactivity of bis(pyridine)-ligated Au(III) complexes is presented,
based on NMR spectroscopic, X-ray crystallographic, and DFT data.
The electron density of pyridines modulates the catalytic activity
of Au(III) complexes in propargyl ester cyclopropanation of styrene.
To avoid strain induced by a ligand with a nonoptimal nitrogen–nitrogen
distance, bidentate bis(pyridine)–Au(III) complexes convert
into dimers. For the first time, bis(pyridine)Au(I) complexes are
shown to be catalytically active, with their reactivity being modulated
by strain.
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Affiliation(s)
- Ann Christin Reiersølmoen
- Department of Chemistry, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim, Norway
| | - Dániel Csókás
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H1117 Budapest, Hungary
| | - Sigurd Øien-Ødegaard
- Centre for Material Sciences and Nanotechnology, University of Oslo, Sem Sælands vei 26, 0371 Oslo, Norway
| | - Alan Vanderkooy
- Department of Chemistry, BMC Uppsala University, Husargatan 3, 752 37 Uppsala, Sweden
| | - Arvind Kumar Gupta
- Department of Organic Chemistry - Ångström Laboratory, Uppsala University, Lägerhyddsvägen 1, 751 20 Uppsala, Sweden
| | - Anna-Carin C Carlsson
- Department of Chemistry and Molecular Biology, University of Gothenburg, SE-412 96 Gothenburg, Sweden
| | - Andreas Orthaber
- Department of Organic Chemistry - Ångström Laboratory, Uppsala University, Lägerhyddsvägen 1, 751 20 Uppsala, Sweden
| | - Anne Fiksdahl
- Department of Chemistry, Norwegian University of Science and Technology, Høgskoleringen 5, 7491 Trondheim, Norway
| | - Imre Pápai
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H1117 Budapest, Hungary.,Department of Chemistry, University J. Selyeho, 94505 Komárno, Slovakia
| | - Máté Erdélyi
- Department of Chemistry, BMC Uppsala University, Husargatan 3, 752 37 Uppsala, Sweden
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10
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Naveen N, Ramesh G, Balamurugan R. Silver‐Catalyzed Synthesis of Enones/α‐Iodoenones from Tertiary Propargyl Alcohols. ChemistrySelect 2019. [DOI: 10.1002/slct.201903568] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Naganaboina Naveen
- School of ChemistryUniversity of Hyderabad, Gachibowli Hyderabad 500046 India
| | - Golla Ramesh
- School of ChemistryUniversity of Hyderabad, Gachibowli Hyderabad 500046 India
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11
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The synthesis and structural characterization of furanyl-1,2,3-triazole Gold(I) and its application in synthesis of enones from propargylic esters and alcohols. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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12
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Hu W, Shan L, Ma F, Zhang Y, Yang Y, Wang D. The synthesis of methyl triazole-4-carboxylate gold(I) complex and application on allene synthesis and alkyne hydration. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.107564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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13
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Yao W, Wu Q, Huang R, Zhang Y, Yang Y, Zhang L, Wang D. The Practical Method to Synthesize Gold Nanoparticles Supported on Hydrotalcite and Application on Oxidation and Hydration Reactions. ChemistrySelect 2019. [DOI: 10.1002/slct.201902730] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Wei Yao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Qiang Wu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Ronghui Huang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Yilin Zhang
- Department of ChemistryWest Virginia University, Morgantown West Virginia 26506 United States
| | - Yongchun Yang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
| | - Liang Zhang
- National Engineering Laboratory for Cereal Fermentation TechnologyJiangnan University Wuxi 214122 China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 China
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14
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Kadiyala V, Bharath Kumar P, Balasubramanian S, Karunakar GV. Gold-Catalyzed Synthesis of 6-Hydroxyindoles from Alkynylcyclohexadienones and Substituted Amines. J Org Chem 2019; 84:12228-12236. [PMID: 31460758 DOI: 10.1021/acs.joc.9b02023] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient gold-catalyzed formation of 6-hydroxyindoles from substituted alkynylcyclohexadienones and amines have been developed. In this reaction two new C-N bonds were formed, and moderate to very good yields of the 6-hydroxyindole derivatives were obtained in one pot. This organic transformation tolerates a range of substituted alkynylcyclohexadienones and amines, which resulted in 6-hydroxyindole derivatives selectively.
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Affiliation(s)
- Veerabhushanam Kadiyala
- Fluoro and Agrochemicals Department , Academy of Scientific and Innovative Research , Ghaziabad 201002 , India
| | - Perla Bharath Kumar
- Fluoro and Agrochemicals Department , Academy of Scientific and Innovative Research , Ghaziabad 201002 , India
| | - Sridhar Balasubramanian
- Center for X-ray Crystallography , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Galla V Karunakar
- Fluoro and Agrochemicals Department , Academy of Scientific and Innovative Research , Ghaziabad 201002 , India
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15
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Jiang JJ, Cui JF, Yang B, Ning Y, Lai NCH, Wong MK. Chiral Cyclometalated Oxazoline Gold(III) Complex-Catalyzed Asymmetric Carboalkoxylation of Alkynes. Org Lett 2019; 21:6289-6294. [PMID: 31386378 DOI: 10.1021/acs.orglett.9b02171] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Asymmetric catalysis by using novel chiral O,O'-chelated 4,4'-biphenol cyclometalated oxazoline gold(III) complexes has been developed. A high yield (≤89%) and a high enantioselectivity (≤90% ee) were achieved in asymmetric carboalkoxylation of alkynes. Enantioselectivity could be significantly improved from 19% to 90% ee by increasing the steric size of the substituent on the chiral oxazoline ligand. Catalytically active AuIII species and the origin of chiral induction are proposed.
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Affiliation(s)
- Jia-Jun Jiang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Hong Kong
| | - Jian-Fang Cui
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Hong Kong.,Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , People's Republic of China
| | - Bin Yang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Hong Kong
| | - Yulu Ning
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Hong Kong
| | - Nathanael Chun-Him Lai
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Hong Kong
| | - Man-Kin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology , The Hong Kong Polytechnic University , Hung Hom , Hong Kong
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16
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Jin L, Liu C, Yang FZ, Wu DY, Tian ZQ. Coordination behavior of theophylline with Au(III) and electrochemical reduction of the complex. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.02.118] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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17
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Gregori L, Sorbelli D, Belpassi L, Tarantelli F, Belanzoni P. Alkyne Activation with Gold(III) Complexes: A Quantitative Assessment of the Ligand Effect by Charge-Displacement Analysis. Inorg Chem 2019; 58:3115-3129. [PMID: 30775914 DOI: 10.1021/acs.inorgchem.8b03172] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A quantitative assessment of the Dewar-Chatt-Duncanson components of the Au(III)-alkyne bond in a series of cationic and dicationic bis- and monocyclometalated gold(III) complexes with 2-butyne via charge-displacement (CD) analysis is reported. Bonding between Au(III) and 2-butyne invariably shows a dominant σ donation component, a smaller, but significant, π back-donation, and a remarkable polarization of the alkyne CC triple bond toward the metal fragment. A very large net electron charge transfer from CC triple bond to the metal fragment results, which turns out to be unexpectedly insensitive to the charge of the complex and more strictly related to the nature of the ancillary ligand. The combination of σ donation, π back-donation, and polarization effects is in fact modulated by the different ligand frameworks, with ligands bearing atoms different from carbon in trans position with respect to the alkyne emerging as especially interesting for both imparting Au(III)-alkyne bond stability and inducing a more effective alkyne activation. A first attempt to figure out a rationale on the bonding/reactivity relationship for Au(III)-alkyne is made by performing a comparative study in a model nucleophilic attack of water to the alkyne triple bond. Smaller π back-donation facilitates alkyne slippage in the transition states, which is energetically less demanding for Au(III) than for Au(I), and suggests a greater propensity of Au(III) to facilitate the nucleophilic attack.
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Affiliation(s)
- Luca Gregori
- Dipartimento di Chimica, Biologia e Biotecnologie , Università degli Studi di Perugia , via Elce di Sotto 8 , I-06123 Perugia , Italy
| | - Diego Sorbelli
- Dipartimento di Chimica, Biologia e Biotecnologie , Università degli Studi di Perugia , via Elce di Sotto 8 , I-06123 Perugia , Italy
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM) , c/o Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8 , I-06123 Perugia , Italy.,Consortium for Computational Molecular and Materials Sciences (CMS)2 , via Elce di Sotto 8 , I-06123 Perugia , Italy
| | - Francesco Tarantelli
- Dipartimento di Chimica, Biologia e Biotecnologie , Università degli Studi di Perugia , via Elce di Sotto 8 , I-06123 Perugia , Italy.,Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM) , c/o Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8 , I-06123 Perugia , Italy.,Consortium for Computational Molecular and Materials Sciences (CMS)2 , via Elce di Sotto 8 , I-06123 Perugia , Italy
| | - Paola Belanzoni
- Dipartimento di Chimica, Biologia e Biotecnologie , Università degli Studi di Perugia , via Elce di Sotto 8 , I-06123 Perugia , Italy.,Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM) , c/o Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, via Elce di Sotto 8 , I-06123 Perugia , Italy.,Consortium for Computational Molecular and Materials Sciences (CMS)2 , via Elce di Sotto 8 , I-06123 Perugia , Italy
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18
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Yang B, Yao W, Xia XF, Wang D. Mn-Catalyzed 1,6-conjugate addition/aromatization of para-quinone methides. Org Biomol Chem 2019; 16:4547-4557. [PMID: 29873652 DOI: 10.1039/c8ob01057a] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of ferrocenyl triazole ligands have been synthesized and characterized, which proved to be effective for the Mn-catalyzed 1,6-conjugate addition/aromatization of para-quinone methides with good to high yields under mild conditions. This protocol provided an efficient and practical route to the synthetically interesting functionalized quinones, methines and their analogues.
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Affiliation(s)
- Bobin Yang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
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19
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Trost BM, Tracy JS. Vanadium-Catalyzed Synthesis of Geometrically Defined Acyclic Tri- and Tetrasubstituted Olefins from Propargyl Alcohols. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04567] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Barry M. Trost
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, United States
| | - Jacob S. Tracy
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, United States
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20
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Suárez-Rodríguez T, Suárez-Sobrino ÁL, Ballesteros A. Direct Synthesis of α-Iodoenones by IPy 2BF 4-Promoted Rearrangement of Propargylic Esters. J Org Chem 2018; 83:12575-12583. [PMID: 30247033 DOI: 10.1021/acs.joc.8b01746] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A direct access to α-iodoeones from iodonium ion and propargylic tosylates or acetates is described. Bis(pyridine) iodonium tetrafluoroborate (IPy2BF4, Barluenga's reagent) promotes the rearrangement of these propargylic alcohol derivatives in mild conditions. The transformation gives β-unsubstituted, β-monosubstituted, and β,β-disubstituted α-iodoenones in high yields. β-Substituted α-iodoenones are obtained with excellent ( Z)-selectivity.
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Affiliation(s)
- Tatiana Suárez-Rodríguez
- Instituto Universitario de Química Organometálica "Enrique Moles" and Departamento de Química Orgánica e Inorgánica , Universidad de Oviedo , c/Julián Clavería 8 , Oviedo 33006 , Spain
| | - Ángel L Suárez-Sobrino
- Instituto Universitario de Química Organometálica "Enrique Moles" and Departamento de Química Orgánica e Inorgánica , Universidad de Oviedo , c/Julián Clavería 8 , Oviedo 33006 , Spain
| | - Alfredo Ballesteros
- Instituto Universitario de Química Organometálica "Enrique Moles" and Departamento de Química Orgánica e Inorgánica , Universidad de Oviedo , c/Julián Clavería 8 , Oviedo 33006 , Spain
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21
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Hu X, Zhu H, Sang X, Wang D. Design and Synthesis of Zirconium-Containing Coordination Polymer Based on Unsymmetric Indolyl Dicarboxylic Acid and Catalytic Application on Borrowing Hydrogen Reaction. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800875] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xinyu Hu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
| | - Haiyan Zhu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
| | - Xinxin Sang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
- Key laboratory of inorganic nonmetallic crystalline and energy conversion materials, College of Materials and Chemical Engineering; China Three Gorges University; Yichang, Hubei 443002 People's Republic of China
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22
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Kitteringham E, Zhou Z, Twamley B, Griffith DM. Au(III) and Pt(II) Complexes of a Novel and Versatile 1,4-Disubstituted 1,2,3-Triazole-Based Ligand Possessing Diverse Secondary and Tertiary Coordinating Groups. Inorg Chem 2018; 57:12282-12290. [PMID: 30192529 DOI: 10.1021/acs.inorgchem.8b01994] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel 1,4-disubstituted 1,2,3-triazole-based ligand, 2-(4-(pyridin-2-yl)-1 H-1,2,3-triazol-1-yl)propane-1,3-diamine (ptpd), which possesses pyridyl and diamino secondary and tertiary coordinating groups was synthesized in excellent yield. The reactivity of 2-(1-phenyl-1 H-1,2,3-triazol-4-yl)pyridine (ptp), di- tert-butyl (2-azidopropane-1,3-diyl)dicarbamate (Boc2-ptpd), and ptpd·3HCl was investigated with Au(III) and Pt(II) precursors. Analysis including X-ray crystal structures of [Au(III)Cl3(ptp)] (1), [Au(III)Cl2(ptpd)][Au(I)Cl2][OH]{[NaAuCl4·2H2O]} n (3), and [Pt(II)Cl2(ptpdH2)][PtCl4] (4) revealed that ptpd (i) serves as a monodentate ligand for Au(III) coordinating to the metal center via the pyridine nitrogen only, (ii) preferentially coordinates Au(III) via the bidentate diamino group over the monodentate pyridine group, (iii) can coordinate Pt(II) in a bidentate fashion via the pyridyl nitrogen and the triazole N-3, and (iv) can bridge two Pt(II) centers through bidentate chelation at the diamino group and bidentate chelation via the pyridyl nitrogen and the triazole N-3. ptpd represents a versatile ligand template for the development of mixed metal complexes.
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Affiliation(s)
- Eolann Kitteringham
- Department of Chemistry , RCSI , 123 St. Stephens Green , Dublin 2 , Ireland
| | - Zehao Zhou
- College of Pharmaceutical Sciences , Soochow University , 199 Ren'ai Rd., Suzhou Industrial Park , Soochow , Jiangsu , China , 215123
| | - Brendan Twamley
- School of Chemistry , Trinity College Dublin, University of Dublin , Dublin 2 , Ireland
| | - Darren M Griffith
- Department of Chemistry , RCSI , 123 St. Stephens Green , Dublin 2 , Ireland
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23
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Sorbelli D, Belpassi L, Tarantelli F, Belanzoni P. Ligand Effect on Bonding in Gold(III) Carbonyl Complexes. Inorg Chem 2018; 57:6161-6175. [PMID: 29741374 DOI: 10.1021/acs.inorgchem.8b00765] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We quantitatively assess the Dewar-Chatt-Duncanson (DCD) components of the Au(III)-CO bond and the charge density polarization at the CO, in a series of neutral, cationic, and dicationic bis- and monocyclometalated gold(III) complexes via charge-displacement (CD) analysis. A striking feature concerns the very small net electron charge flux from CO to the metal fragment which is unexpectedly stable toward both the charge of the complex and the oxidation state of gold (I, III). All systems exhibit a similar trend for the σ charge rearrangement in the region of the carbonyl bond, where, by contrast, the π back-donation trend variation is large, which is strictly correlated to the change in CO bond distance and the shift in CO stretching frequencies, in close analogy with the gold(I) carbonyl complexes. In the whole series of gold(III) compounds, a large Au(III) ← CO σ donation is measured (from 0.19 to 0.31 electrons), as well as a significant Au(III) → CO π back-donation (from -0.09 to -0.22 electrons), which however is not generally able to completely balance the polarization of the CO π electrons in the direction from oxygen to carbon (C ← O) induced by the presence of the metal fragment [LAu(III)]0/+1/+2. Surprisingly, all the gold(III) complexes in the series are characterized by a very small anisotropy in the Au(III) → CO in-plane and out-of-plane π back-donation components, in sharp contrast with the marked anisotropy found before for the experimentally characterized [(C^N^C)Au(III)CO]+ complex. A first attempt to figure out a rationale on the bonding/reactivity relationship for Au(III)-CO is made by performing a comparative study with an isostructural [(N^N^C)Pt(II)CO]+ complex in a model water-gas shift (WGS) reaction.
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Affiliation(s)
| | - Leonardo Belpassi
- Consortium for Computational Molecular and Materials Sciences (CMS)2 , via Elce di Sotto 8 , I-06123 Perugia , Italy
| | - Francesco Tarantelli
- Consortium for Computational Molecular and Materials Sciences (CMS)2 , via Elce di Sotto 8 , I-06123 Perugia , Italy
| | - Paola Belanzoni
- Consortium for Computational Molecular and Materials Sciences (CMS)2 , via Elce di Sotto 8 , I-06123 Perugia , Italy
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24
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Miao M, Xu H, Jin M, Chen Z, Xu J, Ren H. 1,2-Gold Carbene Transfer Empowers Regioselective Synthesis of Polysubstituted Furans. Org Lett 2018; 20:3096-3100. [PMID: 29733215 DOI: 10.1021/acs.orglett.8b01152] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A gold-catalyzed cascade cycloisomerization/ring-opening reaction of allenyl ketones bearing a cyclopropyl moiety with a wide variety of alcohols or ketones is developed. This reaction involves an unprecedented 1,2-gold carbene transfer to provide regioselective and modular access to tri- or tetrasubstituted furans in moderate to high yields and with broad substrate tolerability.
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Affiliation(s)
- Maozhong Miao
- Department of Chemistry , Zhejiang Sci-Tech University , Hangzhou , Zhejiang 310018 , P. R. China
| | - Huaping Xu
- Department of Chemistry , Zhejiang Sci-Tech University , Hangzhou , Zhejiang 310018 , P. R. China
| | - Mengchao Jin
- Department of Chemistry , Zhejiang Sci-Tech University , Hangzhou , Zhejiang 310018 , P. R. China
| | - Zhengkai Chen
- Department of Chemistry , Zhejiang Sci-Tech University , Hangzhou , Zhejiang 310018 , P. R. China
| | - Jianfeng Xu
- Department of Chemistry , Zhejiang Sci-Tech University , Hangzhou , Zhejiang 310018 , P. R. China
| | - Hongjun Ren
- Department of Chemistry , Zhejiang Sci-Tech University , Hangzhou , Zhejiang 310018 , P. R. China
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25
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Wu Q, Pan L, Du G, Zhang C, Wang D. Preparation of pyridyltriazole ruthenium complexes as effective catalysts for the selective alkylation and one-pot C–H hydroxylation of 2-oxindole with alcohols and mechanism exploration. Org Chem Front 2018. [DOI: 10.1039/c8qo00725j] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Pyridyltriazole-ligated ruthenium(ii) complexes have been designed and synthesized, which were characterized by X-ray crystallography.
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Affiliation(s)
- Qiang Wu
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Le Pan
- Chemical Engineering College
- Xinjiang Agricultural University
- Urumqi 830052
- China
| | - Guangming Du
- Chemical Engineering College
- Xinjiang Agricultural University
- Urumqi 830052
- China
| | - Chi Zhang
- School of Chemical Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Dawei Wang
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
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26
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Huang R, Yang Y, Wang DS, Zhang L, Wang D. Where does Au coordinate to N-(2-pyridiyl)benzotriazole: gold-catalyzed chemoselective dehydrogenation and borrowing hydrogen reactions. Org Chem Front 2018. [DOI: 10.1039/c7qo00756f] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Pyridyltriazole gold(i) complexes proved to be an efficient precatalyst for the most challenging gold-catalyzed borrowing hydrogen reaction and dehydrogenation of alcohols and amines.
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Affiliation(s)
- Ronghui Huang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Yongchun Yang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | | | - Liang Zhang
- National Engineering Laboratory for Cereal Fermentation Technology
- Jiangnan University
- Wuxi 214122
- China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
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27
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Huang R, Fu Y, Zeng W, Zhang L, Wang D. The facile approach to fabricate gold nanoparticles and their application on the hydration and dehydrogenation reactions. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.09.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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28
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Gu B, Yu X, Xu Z, Pan F, Wang D. A Single-Step Palladium-Catalysed Synthesis of Naphtho[2,3-b]Benzofuran-6,11-Diones and 2-(Hydroxyphenyl)Naphthalene-1,4-Diones. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15045169836235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Palladium-catalysed competitive three-component C–H functionalisation reactions and cascade coupling ring-closing reactions of quinones with iodophenols in dihaloalkanes are described. During initial attempts to conduct C–H functionalisation reactions of quinones with iodophenols in dihaloalkanes, surprisingly a three-component C–H functionalisation reaction was discovered. Furthermore, as the reaction of chloroquinones with iodophenols was in progress, another surprising cascade coupling with ring closure was achieved. This provided an efficient single-step synthesis of naphtho[2,3- b]benzofuran-6,11-diones.
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Affiliation(s)
- Binjie Gu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P.R. China
- The Key Laboratory of Advanced Process Control for Light Industry, Ministry of Education, School of Internet of Things Engineering, Jiangnan University, Wuxi 214122, P.R. China
| | - Xiaoli Yu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P.R. China
| | - Zhaojun Xu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P.R. China
| | - Feng Pan
- The Key Laboratory of Advanced Process Control for Light Industry, Ministry of Education, School of Internet of Things Engineering, Jiangnan University, Wuxi 214122, P.R. China
| | - Dawei Wang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P.R. China
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29
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Xu Z, Wang DS, Yu X, Yang Y, Wang D. Tunable Triazole-Phosphine-Copper Catalysts for the Synthesis of 2-Aryl-1H
-benzo[d]imidazoles from Benzyl Alcohols and Diamines by Acceptorless Dehydrogenation and Borrowing Hydrogen Reactions. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700179] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Zhaojun Xu
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
| | - Duo-Sheng Wang
- Department of Chemistry; University of Chicago; 5735 S. Ellis Avenue Chicago, IL 60637 USA
| | - Xiaoli Yu
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
| | - Yongchun Yang
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi 214122 Jiangsu Province People's Republic of China
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30
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Cui JF, Ko HM, Shing KP, Deng JR, Lai NCH, Wong MK. C,O-Chelated BINOL/Gold(III) Complexes: Synthesis and Catalysis with Tunable Product Profiles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612243] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jian-Fang Cui
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Hok-Ming Ko
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Ka-Pan Shing
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Jie-Ren Deng
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Nathanael Chun-Him Lai
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Man-Kin Wong
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
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31
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Cui JF, Ko HM, Shing KP, Deng JR, Lai NCH, Wong MK. C,O-Chelated BINOL/Gold(III) Complexes: Synthesis and Catalysis with Tunable Product Profiles. Angew Chem Int Ed Engl 2017; 56:3074-3079. [PMID: 28165658 DOI: 10.1002/anie.201612243] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Indexed: 01/28/2023]
Abstract
Unprecedented stable BINOL/gold(III) complexes, adopting a novel C,O-chelation mode, were synthesized by a modular approach through combination of 1,1'-binaphthalene-2,2'-diols (BINOLs) and cyclometalated gold(III) dichloride complexes [(C^N)AuCl2 ]. X-ray crystallographic analysis revealed that the bidentate BINOL ligands tautomerized and bonded to the AuIII atom through C,O-chelation to form a five-membered ring instead of the conventional O,O'-chelation giving a seven-membered ring. These gold(III) complexes catalyzed acetalization/cycloisomerization and carboalkoxylation of ortho-alkynylbenzaldehydes with trialkyl orthoformates.
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Affiliation(s)
- Jian-Fang Cui
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Hok-Ming Ko
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Ka-Pan Shing
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Jie-Ren Deng
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Nathanael Chun-Him Lai
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Man-Kin Wong
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
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32
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Yu X, Wang DS, Xu Z, Yang B, Wang D. The synthesis of unsymmetric diamides through Rh-catalyzed selective C–H bond activation of amides with isocyanates. Org Chem Front 2017. [DOI: 10.1039/c6qo00793g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthetic and mechanistic studies on Rh-catalyzed C–H activation of amides with isocyanates, resulting in one of the unsymmetric diamine products showing promising anti-cancer activity.
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Affiliation(s)
- Xiaoli Yu
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | | | - Zhaojun Xu
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Bobin Yang
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Dawei Wang
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
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33
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Gaggioli CA, Belpassi L, Tarantelli F, Belanzoni P. The gold(iii)–CO bond: a missing piece in the gold carbonyl complex landscape. Chem Commun (Camb) 2017; 53:1603-1606. [DOI: 10.1039/c6cc09879g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Surprisingly, charge-displacement (CD) analysis reveals a significant π back-donation in the gold(iii)–CO bond.
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Affiliation(s)
- Carlo Alberto Gaggioli
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Universita' degli Studi di Perugia
- Perugia
- Italy
| | - Leonardo Belpassi
- Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM)
- c/o Dipartimento di Chimica
- Biologia e Biotecnologie
- Universita' degli Studi di Perugia
- Perugia
| | - Francesco Tarantelli
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Universita' degli Studi di Perugia
- Perugia
- Italy
| | - Paola Belanzoni
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Universita' degli Studi di Perugia
- Perugia
- Italy
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34
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Wang D, Yang Y, Huang R, Wang L, Wan H. Synthesis of Allenes through Triazole Gold(III) Catalysed Rearrangement of Propargyl Vinyl Ethers. JOURNAL OF CHEMICAL RESEARCH 2016. [DOI: 10.3184/174751916x14754985053189] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An efficient and simple method to the synthesis of allene derivatives was developed through pyridyltriazole gold(III) catalysed rearrangement of propargyl vinyl ethers with moderate to good yields. It was found that the pyridyltriazole gold(III) complex is a good chemoselective catalyst in selective activation of alkynes and allenes. Compared to gold(I) catalysts, the pyridyltriazole gold(III) shows much better substrate tolerance and much higher air and moisture stability.
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Affiliation(s)
- Dawei Wang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P.R. China
| | - Yongchun Yang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P.R. China
| | - Ronghui Huang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P.R. China
| | - Likui Wang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P.R. China
| | - Huida Wan
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P.R. China
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